Improvement in tool-rest for grindstones



TigQl.

NAPETERS. PHDTO-LITHOGRAPHEH, WASHINGTON, D, C.

lniteil 5deurs `WILLIAM II. MOSSTELLER,

vOIT SH ARON VILLE, OHIO.

Lette/rs Patent No. 102,420, dated April 26, 1870.

IMPROVEMENT 1N Toomzns'r ron GRINns'roNns.

The Schedule referred to in these Letters Patent and making part of the same To all whom it 'may concern.'

- Be it known that I, WILLIAM H. MOSTELLER, of Sharonville, Hamilton county, State of Ohio, have invented certain new and useful Improvements in Bevel Tool-Rests for Grindstones; and I hereby declare the following to be a suiiciently4 full, clear, and exact description thereof, to enable one skilled. in the artvto which my invention appertains to make and use it, reference being had: to the accompanying drawings makingv part of this specification.

' This invention relates to a tool-rest for grindstones; and.

It consists in the construction-and relative arrange? ment of the parts of which it is composed, as will be more specifically set folth hereinafter.

In the accompanying drawings illustrative of my in- -Figure 1 is a sectional elevation of the rest in position on the frame ot the grindstoue.

Figure 2 is a detached perspective view of the rest.

A is the frame of an ordinary griudstone, and

, B, the stone, resting, by means of its axle, on the customary anti-friction rollers.

C is a plate or frame provided with slots c for the insertion of screws c', for the attachment of the plate to the grindstone-frame.

D is a metallic frame secured to the plate C by screws c.

The frame D is formed with journal-beatings (l d', for the reception of the journal-projections c e' of the plate E, and is also provided with adjusting-screws F- for setting the plate E to vany required angle.

I-t will be seen that the plate E, by turning or hingfore, not permitted to wear away the stone unevenly.

This rest, furthermore, by steadily and tirmly supporting the tool to be ground, enables the operator to handle the tool with one hand, and thus releases the otherliand for use in turning the crank of the stone.

, With this bevel-rest attachment to a grindstone, the crank will, therefore, be used to operate the stone in preference to the/treadle. As the stone wears, the plate C is set forward, the slots c providing for it.

I claim herein 'as new and of my invention- The tool-rest for griudstones, herein described, consisting of the slotted bed-plate O c, frame D, hinged plate E, and adjusting screws F, all the parts being constructed and arranged relatively to each other, as set forth.

In testimony of which invention I hereunto set my hand WILLIAM H. MOSSTELLER..

Witnesses FRANK MILLWABD, J. L.' WARTMANN. 

